Japanese stocks, yen down as markets on edge before BOJ verdict

HONG KONG Japanese stocks and the yen were down in a volatile session for Asian markets on Wednesday as investors nervously waited on the outcome of the Bank of Japan's policy meeting.

While the BOJ is expected to make negative interest rates the centerpiece of a new policy framework, analysts are divided on what new measures it will unveil even as it grapples with concerns that it is reaching the limits of its unconventional policy making.